Land #328, add --update to tools/install.sh
Land #328, add --update to tools/install.sh

zeroSteiner/king-phisher,securestate/king-phisher,securestate/king-phisher,guitarmanj/king-phisher,wolfthefallen/king-phisher,guitarmanj/king-phisher,zeroSteiner/king-phisher,wolfthefallen/king-phisher,wolfthefallen/king-phisher,zeroSteiner/king-phisher,zeroSteiner/king-phisher,guitarmanj/king-phisher,securestate/king-phisher,guitarmanj/king-phisher,wolfthefallen/king-phisher,zeroSteiner/king-phisher,wolfthefallen/king-phisher,securestate/king-phisher,securestate/king-phisher